Mathematical educational device



FIG. 1 is a perspective view of the mathematical educational device showing my new design, and having the lid to a storage compartment associated therewith shown in a semi-open position;

FIG. 2 is a rear elevational view thereof with the lid shown in the semi-open position;

FIG. 3 is a top plan view thereof with the lid shown in the closed position;

FIG. 4 is a right side elevational view thereof with the lid shown in the semi-open position with it being understood that the left side elevational view will be a mirror image thereof, and;

FIG. 5 is a front elevational view thereof with the lid shown in the semi-open position. 

The ornamental design for a mathematical educational device, as shown and described. 